Improvement in retainers for extension-tubes of chandeliers



. J. P. BROWN. Retainer for Extension-Tubes 0f Chandeliers.

No. 215,318. Patented May 13, 18 79.

N. PETERS, PNOTO-LITNOGRAPflER. WASHINGTON. I10.

UNITED STATES PATENT OFFICE.

JOHN F. BROWN, OF BROOKLYN, N. Y.

IMPROVEMENT IN RETAINERS FOR EXTENSION-TUBES 0F CHANDELlERS.

Specification forming part of Letters Patent No. 215,318, dated May 13,1879; application filed February 24, 1879.

To all whom it may concern:

Be it known that I, JOHN F. BROWN, of Brooklyn, county of Kings, andState of New York, have invented, made, and applied to use Improvementsin the Construction of Retainers for Extension-Tubes of Chandeliers; andI do hereby declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings, making partof this specification, and to the letters of reference marked thereon,in Which- Figure l is a sectional View of my improvement in retainers,showing clutches, rollers, and metal springs. Fig. 2 represents acrosssection.

My invention consists in improvements, as more fully hereinafter setforth, in the construction of retainers for extension-tubes forchandeliers, and relates to ready and efficient means for holding theextension-tubes of chandeliers in position at any point required.

T, Fig. 1, shows a brass tube, which may be provided at its lower endwith a harp containing a shade and burner of a drop-light. Asmaller-sized brass tube is inserted in tube T, which supplies gas tothe drop-light when the tube T is drawn down, forming, as it were, acontinuation of the inner tube. Over the tube T is passed a metal casing, F, being so shaped as to contain the clutches G O, rollers R R, andsprings S S, and holding the same together in their proper places. Theupper en d of the easing F is provided with a coupling, J, beingemployed to connect a tube with the chandelierstem. Upon the lower endof the casing F is secured a set-screw or regulator, H, which regulatesthe tension by screwing up or unscrewin g.

The regulator H and the coupling J have a circular opening large enoughfor the sliderod T to pass through, thereby steadying the same.

The clutches O O are lined with felt or any other friction material. Theclutches O O, tapering downward, have shoulders L lb at the lower end,to prevent rollers R R, in combination with the springs S S, fromdropping below the clutches G O. The springs S S are inserted in groovesV V in the upper and lower ends of the casing F.

When the slide-rod T is drawn down, the clutches G 0, being tapereddownward, bear on the rollers B R. The latter revolve downward upon thesprings S S until the lower ends of the clutches O 0 come in contactwith the regulator H, causing the slide-rod T to be retained in anydesired position, the coupling J and regulator R steadying the slide-rodwhen drawn down or pushed up.

Such being the construction, the operation is as follows: When it isdesired that the slid erod T should be drawn down and gas he supplied tothe drop-light, it is held in position by the pressure of the clutches,rollers, and springs bearing upon it. When the rod T is thrown up, theclutches are raised from the roller, thereby relieving them of friction.

Having set forth my invention, what I claim as new is Thecombinatiomwiththecasing F, of springs S S, rollers R R, clutches O O, and regulator H,constructed and operating substantially as and for the purpose hereinset forth.

JOHN F. BROWN.

Witnesses:

J. O. DAVIS, ARNO R. DOUAI.

